CVE-2016-7796

Name	CVE-2016-7796
Description	The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-659-1
Debian Bugs	839607

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
systemd (PTS)	bullseye	247.3-7+deb11u5	fixed
	bullseye (security)	247.3-7+deb11u7	fixed
	bookworm	252.39-1~deb12u1	fixed
	bookworm (security)	252.38-1~deb12u1	fixed
	trixie	257.8-1~deb13u1	fixed
	forky, sid	258~rc4-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
systemd	source	wheezy	44-11+deb7u5	DLA-659-1
systemd	source	jessie	215-17+deb8u6
systemd	source	(unstable)	231-9		839607

https://github.com/systemd/systemd/issues/4234#issuecomment-250441246
Fixed by: https://github.com/systemd/systemd/pull/4240